>>46642068Arceus is fucking god. Of course it can make whatever it wants. That said nobody can ACTUALLY capture Arceus, game mechanics aren't canon and no trainer is canonically strong enough to fucking oppose god.
That being said, the only legends we know of that are, again canonically, one-of-a-kind are Mewtwo, the weather trio, Jirachi, Deoxys, the creation trio, the legendary dragons, Genesect, the balance trio, Hoopa, the tapus, Necrozma, Magearna, the SWSH dogs, Eternatus, Calyrex, and of course Arceus itself.
>What about Celebi?It's not really important. Celebi can fucking time travel so technically a hundred trainers could own the exact same celebi and it just jumps back to where you caught it after you die/part ways. There could be 1 or 10,000 and it wouldn't really matter.
>BUT DIALGA COULD TIME TRAVEL TOOYes, but because we know there is only one Giratina and one Palkia canonically, that means there is only one Dialga too. Also Dialga doesn't just time travel, it CONTROLS TIME and no trainer is going to be able to deal with that shit. You'd never be able to catch it unless it -wanted- you to since even if you SOMEHOW beat it in battle it could just rewind time over and over until it finds a scenario where it wins.
>B-B-BU-B-BU-BUT I HAVE THESE IN MY BOX SO THAT MEANS THEY AREN'T ONE-OF-A-KINDWhat you catch isn't canon. I have a fucking shiny Arceus. That doesn't mean it exists in canon. The event in HGSS where Arceus makes a new creation trio mon for you is just a display of power. It CAN do that, but it wouldn't do that. Fucking god isn't going to duplicate a deity in charge of a fundamental building block of the universe and entrust it to you just so you can feed it fucking curry and make it one-shot wild zigzagoon.